[LLVMdev] Breakage in CVS?
dcrowe at tremor.crhc.uiuc.edu
Fri Nov 29 12:24:00 PST 2002
Turns out my CVS build was really old, and just needed to be rebuilt from
scratch... I was pretty sure of the non-nullness, and everything seems to
On Thu, 28 Nov 2002, Chris Lattner wrote:
> > > > The following function produces a segv when the begin() is taken from
> > > > vmap, the ScalarMap...
> > > > int count = 0;
> > > > std::map<Value*, DSNodeHandle>& vmap = theGraph->getScalarMap();
> > >
> > > Are you sure "theGraph" is not null at this point?
> > yes... that call returns sucessfully. the segfault occurs after...
> I don't doubt the call successfully returns. The call basically does some
> pointer arithmetic, adding a small constant to "theGraph". When you
> dereference vmap later, you are loading this. If theGraph is null going
> into the call you won't get a segfault there, you will get it later. So
> are you _sure_ theGraph is not null?
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